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Re: noise and popping sounds
But the important question is really,does it have a good beat ?
Sorry couldn't resist.
Chances are you just have a few bad capacitors on the power supply board. Any TV repair shop should be able to take care of this quickly and reasonably cheaply. Best bet is to make a few calls to local shops first though for a rough quote, and also to make sure they do service LCD monitors there, not all do.
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At this point I would suspect the capacitors failure in the power supply, that will be he first thing to look for, see example of failed monitos due to bad caps: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further.
5-22-09 Same problem last month. I had the problem a year ago for a month, then it stopped, reappearing this last month. Last week, I finally called support...I was accidentally transferred to a Dell "internal" technical support department...happily a very diligent technician spent a bit of time with me for free...for same problem, even though he confirmed I was over a year past all warranties. He confirmed this was a monitor problem (not virus, malware, etc.). He also confirmed their standard "guidance"/solution for this monitor issue (if under warrantee) is to replace the monitor (i.e. not attempt to fix it). New monitor needed. But problem again gone for last 10 days. So, when fully irritated, buy new monitor.
First try moving speakers away from monitor a bit. Some speakers magnets actually reduce the life span off monitor. I hope I am wrong but usually a high pitch whine is the High voltage Transformer. Costs more than the monitor. All you can do is continue use till it goes. Speakers usually deteriorate the tube itself. HVT are just one of those parts that go due to use. Hope it gives you more enjoyment before it goes. Good luck and try to have a good day.
The ground wire may have touched something it shouldn't have. That may
have made the pop, but usually you will see where is made contact by a
burn or arc mark.
If you get real lucky and depending on what it touch (that is if this
is what happenned) you may have just blown out the main fuse.
It is black and round (about 3/8" in diameter and about that height.
It is marked 3.15A.
Another POP could have been a capacitor installed in backwards ??
White screen thing, however, is usually not caused by inverter or power board issues like capacitors !!
Chances are a capacitor has blown. They normally make such lovely poping noises when they die.
What will of course now be happening is the voltage inside where that capacitor was will be unstable and it could very well completely fail in the near future.
I would reccomend you get it to a repair shop sooner rather then later for a cheap simple repair rather then an expensive monitor replacement.
It happened that to me last year. After 2 weeks of cracking sound symptoms, my monitor begun to blackout - no video signal but the indicator light is still available. I checked it inside using my tester, one of its transistor was burned-out. I tried to replace it and its working up to now.
Possible cause of this is probably overuse of monitor without proper ventilation causing electronic components to overheat. Try to bring it to an authorized TV repair man in your local area for proper diagnosis - Don't try to fix it yourself. He's the right expert to that.